Window.



W. S. SHIELDS.

wi'mnow. APPLICATION FlLEDDEC-EH. 19H.

Patented Dec. 3, 1918.

2 SHEETS-SHEET I.

WITNESSES W; s. SHIELDS.

WINDOW. APPLICATION FILED DEC. 31, 1917- Patented Dec. 3, 1918.

WITNESSES A Tram/m t i t H WILLIQLM SCOTT SHIELDS, 01E TRENTON, JERSEY.

wnvnovv.

estates.

Specification of Letters Patent.

. Patented Dec. 3, 11911.8...

Application filed December 31, 1917. Serial No. 209,699.

. To all whom itmay concern:

lid

My invention 1s an nnprovement in win- (lows, and has for its object toprovide mechanism in connection-with the window c'asement and. the sashes for guiding the sashes in their movement in the casing without binding .or' sticking andfor serving as a parting strip to permitthe usual parting strip to be dispensed-with, and so arranged that the ulde strips may contract and expand wit out interfering with the movement of the sashes, and wherein the sashes and the "casement are grooved" to receive the strips, the grooves having parallel sides and right angle corners, the strips having their sides inclined to facilitate the removal of the strips and to eliminate splitting and breaking-when fitting the window or making re airs.

. Fig-.7;

11 thddrawings: Figure -1 1s a front view of a window constructed in accordance with the improvement, and with" parts in section; Fig. 2 is atransverse section; V Fig. 3 is a vertical section;

'Fig. 4 1s a section on the line M ed 'Fig. 1;

Fig. 5 is'aperspective view of the guide; Fig. 6 is a section on the line 6--6 'of Fig.7 is a section at rightangles to Fig. 6. The present embodiment of the invention is shown in connection with a casement 1 r v and upper and lower sashes 2 and 3, said I the easement.

sashes-being mounted to slide vertically in Each sash has its opposite side edges vertically grooved, as indicated at 4, and the upper sash has its top grooved,

* .as indicated at'5, while the bottom sash has its bottom grooved as indicated at 6, the grooves 4:, 5 and 6 extendin' the full width and length of the sashes. he sides of the casement are vertically grooved, as indicated at 7, and at points where the upper sash will contact with the top of the easement, and where the lower sash will contactwith the bottom of the easement, the casement is grooved, as indicated at 8 and 9, respec-.

tively, the said grooves registering with the grooves 5 and 6 of the sashes. Within these grooves 7, 8 and 9 are arranged strips 10, 11 and 12, the said strips, as shown more particularly in Fig, 5, being trapezoidal in cross section, having their opposite faces inclined or converging toward one end of the strip. These strips are arranged within the grooves 7, 8 and 9, and are secured in place by screws "13 or the like, the said screws being arranged within longitudinally ertend- I ing grooves 14: in the strips, and in that face of the strip remote from the sash.

The small edge of each strip is arranged within the groove 7, 8 0rd) as the case may be, and the large edge or base is outward and extends beyond the face of, the casement to engage within the grooves '4, 5 and 60f the l sashes. -Unly the corners of the strips eng' ge these grooves 4:, 5 and 6, thesaid-con Thus the strips serve not only as guides and 'ners'engaging the side walls of the grooves.

parting strips for the sashesbut alsoiserve f as weather strips, preventing the entrance of moisture and wind. The usual counter weights -15 are used for counterweighting the .sashes, the said counterweights being connected to cords 16 which, in :turn, are connectedto the sashes. These cords ass over pulleys .17 which are arranged in igs.

1 to 5 in the tops'of the easement and at the tops of the sashes. In Figs. 6 and 7 the pulleys 18 over which the cords 19 pass are arranged at the sides of the sash in vertical slots in the casement 20. The constructibn is otherwise the same, the strips 10 being used to guide the sashes, to serveas parting strips and to serveas weather strips.

It will be noted that the depth of the groove in each strip equals the depth of the engagement of the stri in the sash groove, whereby the walls .of t e grooved strip are made elastic, while at the same te the tapering of the strip causes the outer corner edges only of the stripto engage in .the walls of the groove in the "sash.

ll claim:

ment and sashes, the easement and the sashes having registering grooves in the side edges thereof and extending the full length ot the sides of'the casement and sashes, and combined guide and weather strips held in the grooves in the easement and'fitting withinthe moves in the sashes, andseg as parting str ps and weather strips, heing ot wood and each of the said strips havin its too - In a window, thecom'bination of a case side walls converging toward one edge, and

the said edge bein received within a groove of the easement, t e free edges of the strips engaging the side walls of the grooves of the sashes, each strip having a longitudi- 10 to the depth of theengagement of the strip in the sash groove, whereby the walls of the grooved strip are made elastic, While the tapering of the strip causes the outer corner edgesonly of the said stripto engage in the walls of the groove in the sash.

l/VILLIAM SCOTT SHIELDS. Witnesses:

GEORGE H. GRIFFITH, IRA F. SMITH. 

